نتایج جستجو برای: zeolite nax
تعداد نتایج: 9010 فیلتر نتایج به سال:
This paper discusses the unprecedented microscopic findings of micellar growth in colloidal system (CS) of catalyzed piperidinolysis of ionized phenyl salicylate (PS-). The giant vesicles (GV) was observed under the optical polarization microscope (OPM) at [NaX]=0.1M where X=3-isopropC6H4O-. The conditions were rationalized from pseudo-first-order rate constant, kobs of PS- of micellar phase at...
برای جداسازی هیدروژن از مخلوط های گازی غشاءجدید Pd-SiO2/PSS/NaX با استفاده از نانو زئولیت سدیم، NaX و بر پایه فولاد متخلخل، PSS طراحی و ساخته شد. در ابتدا نانو زئولیت سدیم به روش هیدروترمال سنتز و با استفاده از خلاء بر روی سطح فولاد متخلخل نشانده شد و در گام بعدی کاتالیست Pd-SiO2 سنتز و به روش سل-ژل بر روی پایه PSS/NaX رسوب داده شد. در نهایت کاربرد مجموعه Pd-SiO2/PSS/NaX برای تصفیه هیدروژن مورد...
We report below on nuclear magnetic resonance investigations of the structure and exchange kinetics for the free acid, anion, sodium complex, and barium complex of the ionophore lasalocid A (X537A) in methanol solution. A comparison between the proton and carbon longitudinal relaxation times of lasalocid in nonpolar and polar solvents demonstrates that the free acid (HX) is a monomer in methano...
Salinity stress tolerance in durum wheat is strongly associated with a plant's ability to control Na(+) delivery to the shoot. Two loci, termed Nax1 and Nax2, were recently identified as being critical for this process and the sodium transporters HKT1;4 and HKT1;5 were identified as the respective candidate genes. These transporters retrieve Na(+) from the xylem, thus limiting the rates of Na(+...
Purpose – The purpose of this study is to compare and evaluate the financial performances leading airline companies in Europe before during Covid-19 process. Design/methodology/approach In study, 7 top 10 terms number passengers 2019, second quarter fourth 2019 2020 were taken into consideration. Financial ratios, which are frequently used literature, calculated through data obtained from rep...
The title compound, [FeCl2(C12H26N4)]PF6, is the first mononuclear Fe3+ complex of an ethylene cross-bridged tetraaza-macrocycle to be structurally characterized. Comparison with the mononuclear Fe2+ complex of the same ligand shows that the smaller Fe3+ ion is more fully encapsulated by the cavity of the bicyclic ligand. Comparison with the mu-oxo dinuclear complex of an unsubstituted ligand o...
The activation of soil-fixed phosphorus is a long-term concern in soil science. In order to enhance the activation effect to soil-fixed phosphorus in red soil, different modified zeolite, through physical, chemical method and the associated both physics and chemistry, was used in this paper. The results showed as following: 1) the activated ability to soil-fixed phosphorus in red soil for modif...
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